<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
    <head>
        <title>CSS Test: Line-height using pixels with a minimum plus one value, 1px</title>
        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
        <link rel="help" href="http://www.w3.org/TR/CSS21/visudet.html#propdef-line-height" />
        <link rel="help" href="http://www.w3.org/TR/CSS21/visudet.html#leading" />
        <meta name="flags" content="ahem" />
        <meta name="assert" content="The 'line-height' property sets a minimum plus one length value in pixels." />
        <style type="text/css">* { margin: 0; padding: 0 }
            div
            {
                font: 20px/1 Ahem;
                position: relative;
                width: 1em;
            }
            #div2, #div3
            {
                background: black;
            }
            #div2
            {
                line-height: 1px;
            }
            #div3
            {
                height: 21px;
                left: 1.1em;
                position: absolute;
                top: -9px;
            }
        </style>
    </head>
    <body>
        <p>Test passes if the two boxes below are the same height.</p>
        <div id="div1">
            <div id="div2">X X</div>
            <div id="div3"></div>
        </div>
    </body>
</html>